baber/WOPTO huggingface dataset:
Patent GB-1470142-A (GB)
Title: Heat-resistant resins
IPC: C08G59/00
Filed: 1975-02-03
Abstract: 1470142 Polymers containing imide groups RHONE-POULENC INDUSTRIES 3 Feb 1975 [4 Feb 1974] 4584/75 Headings C3B and C3R A polymer containing imide groups is prepared by reacting: (A) a bis-imide in which Y is a divalent C 2-20  hydrocarbon radical free from non-aromatic unsaturation, a C 2-10  divalent mono- or bis-heterocyclic radical or a C 4-20  divalent organic radical consisting of several hydrocarbon radicals as defined above linked by -O-, -S-, -CO-, or SO 2 ; and (B) either (a) an adduct containing NH 2  groups obtained by reacting an epoxy resin with a polyamide in which Z is an organic radical of valency v and v is an integer of at least 2 or (b) a mixture of an adduct as defined above and an amine in which X is an organic radical of valency m and m is an integer of 1 or more. There is a proviso that where n 1  denotes the number of NH 2  groups in II and n 2  the number of epoxy groups in the epoxy resin, n 3  the number of C=C double bonds in the bis-imide and n 4  the total number of NH 2  groups in component (B), the ratio n 1 /n 2  is > 1 and the ratio n 3 /n 4  is from 1-10. The polymer may be a solid of softening point 50-200 C. which is obtained by reacting (A) and (B) at 50-220 C. until a liquid or paste-like mass is obtained, optionally in the presence of a solvent. An infusible product may be obtained by heating at 150-350 C. Suitable epoxy resins are diglycidyl ethers of bisphenol A and epoxy novolac resins. I may be obtained by dehydrating a bis-maleamic acid with acetic acid and triethylamine using a nickel catalyst. In examples both II and III are bis-(4-aminophenyl)methane.
Patent GB-247967-A (GB)
Title: Steering apparatus for motor tractors and like vehicles
IPC: B61C11/00
Filed: 1926-02-17
Abstract: 247,967. Tlaskal, L. Feb. 17, 1925, [Convention date]. Guiding road vehicles by rails. - Comprises means for guiding or steering a road tractor when it is used for hauling rail vehicles, the fore part of the tractor being supported by and laterally movable on a wheeled platform running on the rails, radial movement of the platform axles being used to effect the lateral movement of the front part of the tractor on the platform. In the construction shown in Fig. 3, the front axle 2 of the tractor T is supported on a platform 12 borne on two wheeled trucks 10, 11. As shown diagrammatically in Fig. 1, an arm lying in the longitudinal axis 15 of one of the trucks is connected at w with a lever 18 pivoted at s to the platform 12 and having its outer end u connected to the support of the axle 2 of the tractor. Thus radial movement of the truck 10 on a curve causes lateral movement of the axle 2. This axle may be clamped, rigidly or otherwise, to a support 20, Fig. 8, bearing on rollers x running on the platform 12. The rollers may be carried either by the support 20, as shown, or by a body free to move between the support and the platform. The lever 18 may be connected either to the support 20 or to the rolling body interposed between the support and the platform, gearing being provided in the latter case to ensure positive movement of the support. The pivot s of the lever 18 may be situated on the longitudinal axis of the platform 12, as shown, or may be displaced off this axis so as to cause the road wheels 4 of the tractor to travel asymmetrically of the rail track 6. Or the point w in the linkage may be changed for this purpose. For reversing., the tractor is guided by the coupling connecting the tractor to the normally-trailing vehicle Lr, this coupling acting on an arm 23 through a removable pivot pin r. The bolt r and a corresponding bolt forming the pivot s are controlled by a cable 24 so that when one is put in the other is drawn out.
Patent GB-1249605-A (GB)
Title: New 4-acyloxy-azetidine-2-ones and a process for their manufacture
IPC: B01J27/00
Filed: 1970-01-30
Abstract: 1,249,605. Printing pastes. FARBWERKE HOECHST A.G. 30 Jan., 1970 [8 Feb., 1969], No. 4654/70. Heading D1B. [Also in Division C2] Printing pastes for fibrous materials comprise a dye and as an acid-yielding agent for fixing the dye, an acyloxyazetidinone of the formula: in which R 1-3  are hydrogen or C 1-4  alkyl or R 2  and R 3  together complete a C 3-6  alkylene radical and R 4  is hydrogen or a C 1-10  aliphatic or aromatic hydrocarbon group. Example 7 relates to a printing paste for cotton fabrics containing copper phthalocyanine, 4-acetoxyazetidin-2-one, a urea condensate, a graft polymer of polyethylene glycol and an oil/ water emulsion. A blue print is obtained after fixing by dry heating to 150C.
Patent GB-486295-A (GB)
Title: Improvements in roses or perforated nozzles
IPC: B05B15/522
Filed: 1938-02-15
Abstract: 486,295. Roses. CHRISTIANSEN, A. Feb. 15, 1938, No. 4663. Convention date, March 20,1937. [Class 69 (iii)] The orifices of a rose are kept clear by pins 8 loosely mounted in a plate 7 mounted on a pin 4 which carries a fixed plate 6. A spring 10 bears against the plate 7. Passage of water causes the plate 7 and pins 8 to vibrate thus clearing the orifices.
Patent GB-537098-A (GB)
Title: Improvements in adjustable seats
IPC: B60N2/16
Filed: 1940-03-13
Abstract: 537,098. Seats. SLEIGH, H. L., CHESTON, A. S., and OLDHAM, F. A. M. March 13, 1940, No. 4669. [Class 52 (ii)] A seat suitable for omnibus drivers is vertically adjusted while occupied by opening or closing pairs of crossed links 3, 4 pivoted scissors fashion at 5 and actuated by an arm 23 which is carried by a rock shaft 24 and connected by a link 21 with a flattened cross bar 18 rigidly connected to the slidible ends of one pair of links 4. Tension springs 30 assist the opening of the links when raising the seat. The cross bar 18 and a similar bar 14 on the other links 3 carry rollers 19, 38 running on tracks 20, 15 in the seat frame 1 and base frame 2 respectively. The rock-shaft may be moved by a hand lever 26 carrying a slidable spring detent 32 engageable with an arcuate rack 34 to hold the seat rigidly in any adjusted position. The actuating arm may be connected with a cross bar joining the lower forward ends of one of the pairs of links.
Patent GB-1366641-A (GB)
Title: Fertilizer
IPC: C05C9/00
Filed: 1971-02-09
Abstract: 1366641 Urea/magnesium compound fertilizer compositions FISONS Ltd 9 Feb 1972 [15 Feb 1971] 4691/71 Heading C1B A solid composition for use as a fertilizer comprises at least 50% by weight urea in admixture with a substantially anhydrous magnesium salt or compound (other than the oxide), said salt or compound containing not more than 1 mol of water per mol of Mg. Specified magnesium salts are the sulphate, nitrate, tetraborate and double salts such as potassium magnesium sulphate and may be commercially available materials or materials obtained by drying or calcination of salts or compounds containing water. Other fertilizers, trace elements, coating agents, pigments, carriers and bulking agents also may be present.
Patent GB-641030-A (GB)
Title: Improvements in or relating to trouser-holder
IPC: A47G25/48
Filed: 1948-02-18
Abstract: 641,030. Garment hangers. BAUMANN, R. Feb. 18, 1948, No. 4708. Convention date, Feb. 19, 1947 [Class 52 (v)] A garment hanger of the type including two trouser holding clips 12 arranged at the ends of a supporting member of adjustable length, and a slide 15 carrying the suspension part or hook 20, is characterized by the supporting member comprising two tubes 10, 11 slidable against friction one into the other, the slide 15 having at least one guide 18 engaged in slits f 1, f2 in the tubes and there being provided two springs 17 abutting the slide and the ends of the tubes, to maintain the slide in a central position. Each clip 12 may comprise two arms which pivot on the end of the corresponding tube, the ends of the arms being connected by a spring. Instead of the slide 15 being formed of sheet metal and situated within the tubes as shown, it may comprise a slit cylinder arranged outside the tubes, the guide being constituted by a radial arm at each end extending through the slits in the tubes and acting as supports for the springs. The springs are preferably chosen so that they cannot overcome the frictional forces retaining the two tubes in their relative position, but the springs may, in some cases, be stronger so that the support opens automatically.
Patent GB-139178-A (GB)
Title: Improvements in or relating to chucks and the manufacture thereof
IPC: B23B31/22
Filed: 1920-02-16
Abstract: 139,178. Aktiebolaget Svenska Kullagerfabriken. Feb. 20, 1919, [Convention date]. Chucks.-A cam-closing disengaging-drive chuck has a rotatable sleeve 2 carrying cam-rings 13, 14, 15, each of which coacts with two diametrically-opposed gripping-members such as rollers 9, 10, at least one pair of which members 10 has operating portions spaced apart to engage the tool-shank at different positions, the operative parts of these rollers 10 being separated by a non-operative portion. In the preferred form, the gripping-rollers 9, 10 move in radial slots in the chuck body 1. The sleeve 2 is rotated to close the jaws by a spring 6, and stops 7 limit its movement. The centre cam-ring 14 is preferably equal to the combined width of the outer rings, and', to ensure accuracy, the cam-faces are formed simultaneously, and the rings then displaced angularly to the correct positions, coacting lugs and grooves being employed on the rings to ensure accurate setting.
Patent GB-578679-A (GB)
Title: Improvements in or relating to diesel or other compression ignition internal combustion engines for marine propulsion working with high supercharging pressure and driving an adjustable propeller
IPC: F02D29/00
Filed: 1944-03-16
Abstract: 578,679. Regulating. ROESCH, F. March 16, 1944, No. 4940. [Class 7 (vi)] [Also in Group XXIX] In a compression ignition engine driving a variable pitch.propeller, the device for adjusting the pitch of the propeller is coupled to the engine control in such a way that the pressure of the air delivered by the supercharger never falls below 60 per cent. of that delivered at full load. The engine 1 drives a supercharger 5 through gears 9, 2, 4 of which the gear 2 is solid with a propeller 3 having blades adapted to be adjusted to forward, neutral or reverse positions by. a rod 7 connected to the end of hand lever 8. The pivot rod 13 of the lever 8 carries a cam 14 adapted to displace laterally a rod 18 carrying a governorcontrolled lever 21, a pin 24 on the end of which engages in a slot 25 on a link 26 having its remote end pivoted at 27 to a fuel pump control rod 11. The pivot 27 is mounted on the end of a depending arm 29 pressed towards the rod 18 by a spring 36 and connected thereto by the slotted end 19 of a rod 20. The setting of the lever 8 thus controls the setting of the fuel, except in so far as it may be overridden by the centrifugal governor 23 actuating the lever 21, and the setting of the propeller blades, this latter being accomplished within determined limits by stops 33 adjusted by spring-pressed pistons 31 exposed to the supercharger pressure through a pipe 32. The propeller. may be adjusted by a servomotor controlled by a hand actuated valve operating through separate operating-fluid control valves for forward and reverse movements.
Patent GB-574439-A (GB)
Title: Improved firebrick
IPC: C04B28/02
Filed: 1944-10-25
Abstract: A firebrick is manufactured from a mixture of 94 per cent slate dust, 2 per cent fireclay, 2 per cent cement, and 2 per cent asbestos.
Patent GB-677503-A (GB)
Title: Holder for steel-wool
IPC: A47L13/04
Filed: 1951-03-01
Abstract: 677,503. Handles and holders. ROKAAS, B. March 1, 1951 [March 1, 1950], No. 5006/51. Class 61 (i). A handle and holder for steel wool and like cleaning appliances comprises springy retaining prongs 7 which are passed out from and drawn into the bore 9 of a hollow cylindrical holder 10 by means of a cylindrical handle 1 closed at the outer end and slidable on the exterior of the holder 10. The element carrying the prongs is riveted to the stem 2 which passes through a hole in the partition 4 in the cylinder 10 and is fixed to the bottom of the cylinder 1, a spring 3 urging the prongs into the holder. The lower end of the cylinder 10 is thickened and has a curved periphery 6 and curved side walls 6a to facilitate finger grip.
Patent GB-630577-A (GB)
Title: Improvements in and relating to hydraulic master cylinders
IPC: B60T11/22
Filed: 1947-02-20
Abstract: 630,577. Hydraulic master cylinders. NEW YORK AIR BRAKE CO. Feb. 20, 1947, No. 5036. Convention date, May 2, 1946. [Class 103 (i)] Gas bubbles that may be trapped in a hydraulic master cylinder are removed by providing in a passage of large diameter, a plug that almost fills the passage and is free to rock therein. A two-stage master cylinder is shown in which in the initial stage the larger diameter piston moves as one with the smaller diameter piston which in the second stage moves the larger piston hydraulically and relatively slowly. It comprises a hollow piston 8 within which and the rear .part 26 of the cylinder a plunger 24, to which the operating rod 29 is connected, is slidable. A valve 38, slidable in a bore in the plunger 24, is normally held by a spring 41 in the position shown, in which it cuts off communication of the interior of the piston 8 with the space 36 at the rear of the piston through the bore in the plunger 24 and in the valve, ports 44 in the valve and port 46. A ring valve 31 slidable on the plunger 24 is normally held displaced from its seat 34 on the piston 8 by a shoulder 35 on the plunger. Thus when the plunger 24 is moved to apply the brakes, since the liquid within the piston 8 cannot escape, the piston moves as one with the plunger, liquid flowing to the space 36 at the rear of the piston from the reservoir 2 through port 4, annular chamber 9, passage 37, past the valve 31. When the pressure within the piston 8, acting on the rear and larger face of the valve 38, is sufficient to overcome the spring 41, the valve moves to the left, permitting the plunger to move farther into the piston, the displaced liquid flowing through the ports 44, 46 and the valve 31 being seated. Since the effective area of the plunger is less than that of the piston 8 the pressure ratio is increased. A restriction 43 in the bore through the valve 38 serves to delay the movement of the valve. The forward part of the bore in the plunger 24 is almost filled by a plug 47 which has a disc-like head 48 which is only slightly smaller in diameter than the bore in the piston 8. The plug is retained loosely in the plunger by a snap-ring 49, so that it may rock. Air which may be contained within the piston 8 after assembly may thus be removed by operating the master cylinder a number of times, the plug acting to ensure that the air is entrained with the liquid as it is displaced from the piston by the increased movement of the plunger. Ports 11 connect the annular chamber 9 with the rear of the packing cup 12 which also acts as a check-valve. A double-check valve comprises a housing 15 seated by the spring 14 upon an annular rubber disc 16 which permits free flow from the cylinder 1 to the outlet 18, reverse flow being controlled by the non-return valve 19 which opens against the loading of a spring 21.
Patent GB-1172871-A (GB)
Title: Method and Apparatus for Dispensing Viscous Materials
Inventor: NOWAK ROBERT MICHAEL
IPC: B29C31/06
Filed: 1967-02-02
Abstract: 1,172,871. Spray-producers. DOW CHEMICAL CO. 2 Feb., 1967 [7 Feb., 1966]; No. 5043/67. Heading B2F. A nozzle 35 suitable for dispensing a material containing a particulate filler and having a viscosity between 4000 and 100,000 centipoise comprises a generally elongated housing 36 having an internal cavity 44, an inlet passageway 43 having a cross-sectional area A, and an outlet plate on the lower surface of the housing, said plate being provided with a plurality of discharge openings 49, 50 having a total cross-sectional area of at least 75% of A but sufficiently small in order to prevent drip. The openings may be arranged in parallel rows and may be circular, Fig. 5 (not shown) or elongated, Fig. 3 (not shown). The side walls of each opening may be curved, Fig. 4 (not shown) or straight, Fig. 8 (not shown). A constant displacement metering unit (15), Fig. 1 (not shown) delivers predetermined quantities of material intermittently to the nozzle and a pump (12) removes gas trapped within the material. Fig. 6 (not shown) depicts an embodiment including a pair of inlet passages (62), (63). A screen or perforate sheet 51 within the cavity 44 provides back pressure and ensures that the material is discharged from all the openings simultaneously.
Patent GB-746185-A (GB)
Title: Improvements in or relating to hydraulic pressing devices for use with grinding mills
IPC: B02C4/32
Filed: 1953-02-23
Abstract: 746,185. Roller and roller-and-breast mills. SCHOFFEL, L. Feb. 23, 1953, No. 5051/53. Class 59. [Also in Group XXIX] The friction bar 10 of a roller-and-bar mill is loaded both at its front and its edge by sets of hydraulic cylinders 14, 15. The hydraulic pressure supply to each of these from a common pump can be adjusted separately by buttons 41 which adjust the load on relief valves 35. The invention may also be applied to roller mills, the rollers being loaded to different adjustable pressures.
Patent GB-1163654-A (GB)
Title: Improvements in or relating to Tube Drawing Machines.
Inventor: SCHMIEDT HANS
IPC: B21C1/18
Filed: 1967-02-02
Abstract: 1,163,654. Drawing. SCHWERMASCHINENBAU " HEINRICH RAU ", WILDAU, VEB. 2 Feb., 1967, No. 5156/67. Heading B3P. A sequence controlled tube drawing machine has a safety device for checking that the path of the drawing carriage along the bed is free of tubes at the end of a drawing operation the device comprising a plurality of sensing arms spaced along the bed and pivotally mounted on a common axis for movement transversely of the bed from a starting position to a horizontal position at the height of the die centre. Fig. 2 shows the side members 2 of the machine bed and inclined rails 5 down which the drawn tubes roll when they are released by the drawing tongs. If a tube remains in the machine its presence is detected by a pivoted arm 10 which has a contact bar 19 on an insulating layer 18. If the arm strikes a tube, the movement of the arm is immediately reversed and the return movement of the carriage is prevented electrically. The pivoted end of the arm has a slot 11 which engages a pivot pin 9. The arm is connected by a lever 12 to a bell crank 15 which is rotated by a pneumatic jack 17. When the arm is in the lowered position the pin 9 is at the top of the slot 11 and as the jack 17 operates the arm is first raised until the pin 9 is at the bottom of the slot 11 and the arm then rotates about the pin to the position shown in Fig. 2. In a modification a second lever (23), Fig. 3 (not shown) is connected between a point half-way along the arm 13 of the bell crank and a point on the arm 10 near the bottom of the slot 11. This construction gives controlled lifting of the arm relative to the pin 9.
Patent GB-1219351-A (GB)
Title: Production of 1,2,4-trimethyl-5-isopropyl benzene
IPC: C07C2/68
Filed: 1968-02-01
Abstract: 1,219,351. 1,2,4 - Trimethyl - 5 - isopropyl benzene. GELSENBERG BENZIN A.G. 1 Feb., 1968 [17 Feb., 1967], No. 5242/68. Heading C5E. 1,2,4 - Trimethyl - 5 - isopropyl benzene is produced from pseudocumene by (1) reacting a quantity of pseudocumene with a mixture of trimethyl diisopropyl benzenes in the presence of AlCl 3 , and (2) reacting the remaining unreacted pseudocumene with propene in situ or with subsequently added propene, also in the presence of AlCl 3 . Both stages yield the desired product. The first stage involves a transalkylation which takes place substantially completely before the second stage. Stage (2) yields a byproduct a mixture of trimethyl diisopropyl benzenes which may be re-used in stage (1). The process is a development of that of Specification 1,068,649.
Patent GB-1377333-A (GB)
Title: Process for aromatic carboxylic acids
IPC: C07C51/00
Filed: 1973-02-02
Abstract: 1377333 Aromatic carboxylic acids SUN RESEARCH & DEVELOPMENT CO 2 Feb 1973 [3 Feb 1972] 5245/73 Heading C2C Aromatic carboxylic acids are made from aromatic nitriles by a process which comprises the non-catalytic hydrolysers of an aqueous solution of said nitriles at 200 to 300 C. in the presence of recycled hydrolysis product of said nitrile, venting steam and ammionic vapours at about 200 to about 300 C. and at autogenous pressure, cooling to precipitate the aromatic carboxylic acid, separating said solid acid from the solution of soluble hydrolysis products and recycling said aqueous solution to a subsequent hydrolysis. Nitriles and/or other precursors of nitrile hydrolysis products can be added to the reaction mixture. To ensure that the acid products have a significantly lowered nitrogen content, the hydrolysis medium should contain 0À2 to 2À0 recycle carboxylic acid, hydrolysis equivalents per equivalent of nitrile charged. Examples of the nitriles used in the process are benzonitrile, phthalonitrile, terephthalonitrile, isophthalonitrile, toluonitriles and naphthonitriles.
Patent GB-322958-A (GB)
Title: Slide support for drawers
IPC: A47B88/12
Filed: 1929-02-18
Abstract: 322,958. Busch, H. Feb. 18, 1929. Drawer fittings.-To give easy running and reduce wear there are secured in the runner bottoms metal plates d on which the lower faces of the sides of the drawer slide. The plates are secured by prongs d<1> on their edges and screws i. Part of the front edge of the plate is turned up as shown at e to form a stop, and the side edge g is turned up to form a support for the portion e.
Patent GB-511777-A (GB)
Title: An improved fastening device for motor car bonnets and the like
IPC: E05B65/19
Filed: 1938-02-21
Abstract: 511,777. Fastenings. HARLEY, R. S. Feb. 21, 1938, No. 5390. [Class 44] A fastening device for motor car bonnets comprises a mounting 4, secured to the inside face of the bonnet 1, slotted at 5 to accommodate slidingly the headed pivot stud 15 of the hooked catch lever 7, and formed with a hook 14 engaged by a tension spring 13, the other arm of which engages a hook 12 on the catch lever. Two such devices may be fitted, the pivot studs 15 being constituted by the ends of a spring rod whose mid-point is attached to the bonnet panel.